Goa drive circuit and embedded type touch display panel

Abstract

The present invention provides a GOA drive circuit and embedded type touch display panel. The GOA drive circuit comprises GOA units cascade coupled in multilevel, the nth level GOA unit comprises an output end pull down unit and an output control unit, both the output end pull down unit and the output control unit are employed to control a signal outputted by an output end of the nth level GOA unit, and one end of the output end pull down unit is coupled to a first end point, the first end point is loaded with a first signal, and one end of the output control unit is coupled to a nth clock signal, and as the embedded touch display panel enters signal interrupt and performs a touch scan, the output control unit is off to cut off an output path that the nth clock signal outputs to the output end.

Description

CROSS REFERENCE[0001]This application claims the priority of Chinese Patent Application No. 201610761256.3, entitled “GOA drive circuit and embedded type touch display panel”, filed on Aug. 29, 2016, the disclosure of which is incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to a display panel technology field, and more particularly to a GOA drive circuit and an embedded type touch display panel.BACKGROUND OF THE INVENTION[0003]The Liquid Crystal Display (LCD) possesses advantages of thin body, power saving and no radiation to be widely used in many application scope. The common liquid crystal display devices can be the liquid crystal television, the mobile phone, the Personal Digital Assistant (PDA), the digital camera or the notebook.[0004]Gate Driver on Array (GOA) technology, i.e. the array substrate row driving technology is to utilize the array manufacture process of the Thin Film Transistor (TFT) liquid crystal display...

AI Technical Summary

Benefits of technology

[0023]In comparison with prior art, the nth level GOA unit of the GOA drive circuit according to the present invention comprises the output end pull down unit and the output control unit. Both the output end pull down unit and the output control unit are employed to control the signal outputted by the output end of the nth level GOA unit. One end of the output end pull down unit is electrically coupled to a first end point L, and the first end point L is loaded with a first signal, and one end of the output control unit is electrically coupled to a nth clock signal, and as the embedded touch display panel enters signal interrupt and performs a touch scan stage, the output control unit is off to cut off an output path that the nth clock signal outputs to the output end, and the output end pull down unit is on to output the first signal through an output end of the GOA unit, wherein as the embedded touch display panel enters signal interrupt and performs the touch scan stage, the first signal is a signal consistent with a touch scan signal of the embedded touch display panel. Accordingly, the signals of the output ends of the GOA units of all levels are consistent with the scan touch signal to decrease the delay of the touch scan signal, and thus to promote the detection accuracy as the embedded touch display panel detects the user's touch operation.

Problems solved by technology

Generally, the touch scan signal is a pulse signal different from the constant voltage level signal, and ultimately results in the delay of the touch scan signal outputted to the embedded touch display panel.

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